Infant-incubator.



No. 759,612. PATENTED MAY 10, 1904.

G. H. HOW.

INFANT INGUBATOR.

APPLIOATION FILED APR. so. 1903.

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No. 759,612. PATENTED MAY 10, 1904.

G. H. HOW.

INFANT INCUBATGR.

APPLIGATIOH FILED un. so. 190s.

No MODEL. 2 sums-SHEET 1.

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PATENT OFFICE.

GEORGE H. "How, or CHICAGO, TLLINOIS.

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,i To all whom it may concern:

l and exact description thereof, referenoe'being had to the accompanying drawings, which form part o f this specification..A .p

My invention relates to incubatore for infants, and has for its primary objectto pro-4 vide a device of th'e character specified capable of establishing and maintaining salutary and hygienic atmospheric conditions and equable conditions of temperature best adaptedgo the maintenance of healthin infant chilren.

More specifically, one ofthe objects of my invention is to `provide an incubator of the character described wherein provision is made for heatingthe air introduced into the interior of the incubation-cham ber to any desired degree without, however, introducing into said air products of combustion from the primary source of heat-supply or other deleterious matters. A further object of my invention is to provide means for producing in the air contained in the incubator quantities of ozone to induce healthful and salutary conditions therein; and yet a further object of my invention is to provide `means for creating a proper circulation of hot and cold air within the incubationchamber.

With a view to attaining these and other objects, which will become apparent from the following description, my invention consists in the features of construction and arrangement of parts hereinafter more fully described, and specified in the appended claims.

In thedrawings, Figure 1 is an end elevation of an incubator constructed to embody my invention.` Fig. 2 is a side elevation of the same. Fig. 3 1s a transverse vertical section taken on lines 3 3 of Fig. 1. Fig-4 is a sectional plan takenon line 4 4 of Fig. 2.

Throughout the drawings like numerals of l' reference refer to like parts. f

- Referring now to the drawings, 5 indicates an inclosing casing having an air-heating chamber 6, supported upon legs 7 and separated from a superposed glass-inclosed-cham- 'ber 8 by a suitably-supported floor 9. Air is admitted into the air-heating chamber through suitable apertures 10 and passes therefrom 'into the chamber 8 through passages 11 and thence to the exterior of the incubator partially through o utlets 12. Additional Vair-inlet apertures 13 are preferably formed in the top of the casing, and an apertnred slide 14 is provided to open or close said inlet-apertures. A Asimilar slide 10' is provided to reguas an oil-burner 17, is associated with the radiator-body to heat the water therein, such burner being located without the air-heating chamber 6. It will be understood that any suitable apparatus may be provided for this purpose, the only requirement being that the heating devices be arranged exterior of the casing, so that products of combustion are not carried thereinto by the entering air. It Iwill be apparent that air entering through the ap ertures 10 will sweep upward around the water-leg 16 of the radiator and become heated.

A thermometer 18 is suitably suspended within the'incubator-chamber to enable the attendant to maintain the heat at a proper degree.

To stimulate a free circulation of relatively hot and cold air within the incubator-chamber, I provide means for exhaustin air from the. interior of the chamber. To t is end I provide at a suitable point a vacuum-tank 19, adapted to be exhausted by a suitable pump 20 and connected by a pipe 21 with a suitable inlet 22. I A suitable valve 23 is provided in the pipe 21 to regulate the quantity of air which may pass through the said pipe to th vacuum-tank.

It will be apparent that when the pressure within the vacuum-tank is brought suiiiciently of the pump and the valve 23 is properly set air will be drawn from the incubation-chamber into said tank and a fresh supply of air drawn in through the inlet-passages. The amount of air entering through openings 10 and 13 can be controlled by proper adjustment of their respective slides, so that an admixture of relatively hot and cold air can be obtained which will maintain the interior of the incubator-chamber at proper temperature.

Associated with the parts described I employ means for creating electrical disturbances within the incubator-chamber. causing disruptive electrical discharges therein and generatingozone within the incubator-chamber 8. AIn the present illustration, 25 indicatesra static electric machine of well-known construction, belted to a pulley 26, which may be adapted for manual or power rotation. The collectors of the static machine are connected by suitable wires 27 and 28 with two discharge-rods 29 and 30, arranged within the incubator. It will be apparent that when the static machine is set in motion and the rods 29 and 30 are suitably adjusted electricaldischarges will occur from adjacent points of the two rods, such discharges acting upon the air contained within the cham ber to produce ozone therein. I have found that this production of an abundance of ozone in the atmosphere within the incubator-chamber is productive of many beneficial eifeets. This allotropic form of oxygen while stimulating physical growth and development in the infants exercises a soothing effect and tends to induce healthful sleep. ln addition it is an active oxidizing and gcrmieidal agent and serves to sterilize the atmosphere, rendering innocuous such particles of organic matter or other deleterious substances as may find their way into the incubation-chamber with the atmosphericair.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. In an infant-incubator, the combination with an incubation-chamber, having an airinlet, of means for purifying the air within the casing comprising a static electrical machine, and disconnected conductors arranged within the casing, in operative association with said machine, and means for insuring circulation of the purified air comprising a vacuum-tank communicating with the incubation-chamber, and a pump for exhausting air from said chamber.

2. In an infant-incubator, the combination with an incubation-chamber having two airinlets, a heater arranged adjacent one of said air-inlets, -means for purifying the air, comprising a static electrical machine havingl its disconnected conductors arranged in the chamber between the two air-inlets, means for independently regulating the capacities of the two inlets, and means for exhausting air from the interior of the chamber.

3. In an infant-incubator, the combination with an incubation-chamber having two airinlets, a heater arranged adjacent one air-inlet, means for independently regulating the capacities of the two inlets, and means for exhausting air from the interior of the chamber.

4. In an infant-incubator, the combination with an incubation-chamber, having an airinlet, of a vacuum-tank communicating with the chamber, and a pump for exhausting air from said tank.

In testimony that I claim the foregoing as my own I aiix my signature in presence of two witnesses.

GEORGE H. HOW.

In presence oi I GEORGE T. MAY, Jr., MARY F. ALLEN. 

